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Study of bubble formation dynamics based on associated acoustic radiation

Study of bubble formation dynamics based on associated acoustic radiation
Study of bubble formation dynamics based on associated acoustic radiation
The release of gas into water can be found in many industrial applications. This process results in the formation of bubbles, and both associated bubble size distribution and bubble volume flow rate have an important impact on the designed outcomes. Research has been carried out both experimentally
and theoretically, in order to explore the underlining physics of a gas-water system of dispersed bubbles. Many researchers have used acoustic techniques to study a quasi-steady bubbly plume. However, it is relative rare to study the dynamics of turbulent release of gas into water using an acoustic techniques, in which both experimental and theoretic analyses become fairly challenging. For those conditions, the widely used optical technique is no longer reliable
if an experimental study is performed. However, the use of acoustic technique has been found to be a promising approach because in injection conditions, the formation of each individual bubble emits sound. In this paper, the bubble formation dynamics will be studied using acoustic techniques.
The acoustic emission of the gas discharge into water will be measured accurately and the bubble formation dynamics will be modelled based on their acoustic emission. The characteristics of the bubbly plume are explored. The bubble are generated using three nozzles having internal diameters of 4 mm, 6 mm and 9 mm and the gas discharge rate is varied between 2.5 L/min to 40 L/min. It has been found that the gas discharge rate has an strong impact on the sound of bubble formation. The choice of nozzle imparts some influence on the bubble formation.
bubble acoustics, bubbly plume, bubble size distribution, bubble generation, underwater nozzle
Chen, Li
63e9dd39-9be1-4416-82cb-58efdc1b23c1
Norwood, Chris
0e4c5519-a2f2-4be0-86fd-f27af12a04ec
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, Timothy
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Chen, Li
63e9dd39-9be1-4416-82cb-58efdc1b23c1
Norwood, Chris
0e4c5519-a2f2-4be0-86fd-f27af12a04ec
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, Timothy
3e5262ce-1d7d-42eb-b013-fcc5c286bbae

Chen, Li, Norwood, Chris, White, Paul and Leighton, Timothy (2017) Study of bubble formation dynamics based on associated acoustic radiation. 24th International Congress on Sound and Vibration, London, United Kingdom. 23 - 27 Jul 2017. 8 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

The release of gas into water can be found in many industrial applications. This process results in the formation of bubbles, and both associated bubble size distribution and bubble volume flow rate have an important impact on the designed outcomes. Research has been carried out both experimentally
and theoretically, in order to explore the underlining physics of a gas-water system of dispersed bubbles. Many researchers have used acoustic techniques to study a quasi-steady bubbly plume. However, it is relative rare to study the dynamics of turbulent release of gas into water using an acoustic techniques, in which both experimental and theoretic analyses become fairly challenging. For those conditions, the widely used optical technique is no longer reliable
if an experimental study is performed. However, the use of acoustic technique has been found to be a promising approach because in injection conditions, the formation of each individual bubble emits sound. In this paper, the bubble formation dynamics will be studied using acoustic techniques.
The acoustic emission of the gas discharge into water will be measured accurately and the bubble formation dynamics will be modelled based on their acoustic emission. The characteristics of the bubbly plume are explored. The bubble are generated using three nozzles having internal diameters of 4 mm, 6 mm and 9 mm and the gas discharge rate is varied between 2.5 L/min to 40 L/min. It has been found that the gas discharge rate has an strong impact on the sound of bubble formation. The choice of nozzle imparts some influence on the bubble formation.

Text
2017 - Chen et al - ICSV24 [paper_326]_20170327134055302 - Author's Original
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More information

Published date: July 2017
Venue - Dates: 24th International Congress on Sound and Vibration, London, United Kingdom, 2017-07-23 - 2017-07-27
Keywords: bubble acoustics, bubbly plume, bubble size distribution, bubble generation, underwater nozzle

Identifiers

Local EPrints ID: 416016
URI: https://eprints.soton.ac.uk/id/eprint/416016
PURE UUID: df61334c-e373-48f7-981c-cbf411558837
ORCID for Paul White: ORCID iD orcid.org/0000-0002-4787-8713
ORCID for Timothy Leighton: ORCID iD orcid.org/0000-0002-1649-8750

Catalogue record

Date deposited: 30 Nov 2017 17:30
Last modified: 18 Jul 2019 11:23

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Contributors

Author: Li Chen
Author: Chris Norwood
Author: Paul White ORCID iD

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